Here is a great site for the devil is alive and well and he tries to harass us even on our windows computer..
Regular Computer maintenance, diagnostics are a real fact of life.
Re Diagnose XP - A Windows XP Diagnostic Guide"
Diagnosing System problems can be very complicated and time consuming. There are no simple solutions.
A Windows XP systems should never Lock-up (freeze), display Blue Screen Stop Errors or Randomly Reboot. These are all warning signs something is wrong or misconfigured with your system.
Unless you are a highly trained, experienced PC Technician do not skip any of the following steps.
Step 1 - AntiVirus
Step 2 - AntiSpywareStep
3 - Windows Update
Step 4 - Drivers
Step 5 - Harddrive
Step 6 - Data Recovery
Step 7 - Memory
Step 8 - System
Step 9 - InternetAdvancedResources"
Fully detailed at
http://mywebpages.comcast.net/SupportCD/DiagnoseXP.html